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Err Msg: Another Program Is Using the Selected Telephony...

This article was previously published under Q158370
This article has been archived. It is offered "as is" and will no longer be updated.
When you add a second modem to a computer and attempt to use it, youmay receive the following error message:
Another program is using the selected telephony device. Try again after other program completes.
This error message occurs if a telephony program was started before themodem was added.
You must shut down and restart the computer before you can use the secondmodem.
When a modem is used, the following components are loaded into memory:
  • Modem.sys
  • Tapisrv.exe
  • Unimodem.tsp
Until these components are unloaded, a TAPI-aware program cannot use amodem that was added after these components were started.

Article ID: 158370 - Last Review: 12/04/2015 15:40:10 - Revision: 1.1

Microsoft Windows NT Server 4.0 Standard Edition, Microsoft Windows NT Workstation 4.0 Developer Edition

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